AnAge entry for Pusa sibirica

Classification (HAGRID: 02237)

Taxonomy: Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Phocidae
                    Genus: Pusa
Species: Pusa sibirica
Common name: Baikal seal
Synonyms: Phoca sibirica, Phoca vitulina sibirica, Phoca baicalensis

Maximum longevity: 56 years (captivity)
Source: ref. 671
Sample size: Small
Data quality: Acceptable
Observations: Including a period of delayed implantation, the total gestation lasts just over 9 months [0443]. Females breed until they are about 30 years old. One wild specimen was estimated to be 56 years old based on teeth annuli [0672]. Little is known about their longevity in captivity, but one specimen was still alive at 23.1 years of age [0671]

No information on metabolism is available.

[0817] Bielby et al. (2007), The fast-slow continuum in mammalian life history: an empirical reevaluation (PubMed)
[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
[0443] Ronald Nowak (2003), Walker's Marine Mammals of the World
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0680] Wootton (1987), The effects of body mass, phylogeny, habitat, and trophic level on mammalian age at first reproduction
[0672] Thomas et al. (1982), Phoca sibirica